Sony has released Firmware Update 3.10 which adds Sony G Master lens support for Sony a7, a7R, a7S, a7II, a7RII, a6000 and a5100 mirrorless cameras. I’m told by Sony USA that Firmware Update is not required for a7SII. Sony firmware updates are cumulative so if you missed previous update(s) you will also get firmware improvements from the updates that you skipped.
Firmware version 3.10 provides the following Improvements:
Before Updating Please Read:
MAC 10.10 and 10.11 USERS:
MAC 10.10 Yosemite and 10.11 El Capitan users if you have not already done so, you will need to first install Mac Driver Loader before running any updates.